Button Rock (Ralph Price) Reservoir water level today
Storage at Button Rock (Ralph Price) Reservoir in the South Platte basin (Division 1), from Colorado DWR's daily reading.
About Button Rock (Ralph Price) Reservoir
Button Rock (Ralph Price) Reservoir is one of the 6 reservoirs BasinMind follows in the South Platte basin, Division 1 of Colorado's seven water divisions. BasinMind's registry lists its operator as City of Longmont. Its recorded capacity is 16,203 acre-feet, the fifth-largest of the 6 and 4% of the capacity BasinMind tracks in the division.
On October 3, 2026 it held 15,558 acre-feet, 96% of that capacity, with room for about 645 acre-feet more. Over the seven days before, storage fell by 96 acre-feet. Taken together, the division's reservoirs with a current reading stood at 65% of capacity (259,607 of 400,010 acre-feet).
Daily storage comes from the Colorado Division of Water Resources, DWR station BRKDAMCO; the official record is on that station's page. The nearest stream gauge BasinMind reads is Fourmile Canyon Creek near Sunshine, about 11 miles away in a straight line.
An acre-foot is the water that would cover one acre a foot deep, about 325,851 gallons; percent full compares storage with recorded capacity, not with what is normal for the date (cfs and acre-feet).
Other reservoirs in the South Platte basin
- Horsetooth Reservoir · 79% full
- Carter Lake · 59% full
- Chatfield Reservoir · 56% full
- Cherry Creek Reservoir · 78% full
- Spinney Mountain Reservoir · 30% full
Stream gauges in the South Platte basin
- South Platte River above Cheesman Lake
- South Platte River below Brush Creek near Trumbull
- South Platte River below Union Avenue at Englewood
- South Platte River at Englewood
- South Platte River at 64th Avenue, Commerce City
- South Platte River at Fort Lupton
- South Platte River at Fort Morgan